Type-writing machine



UNTTED STATES PATENT OFFICE.

JACOB FELBEL, OF NEV YORK, N. Y., ASSIGNOR TO TI-IE VYCKOFF, SEAMANS &BENEDICT, OF ILION, NEW YORK.

TYPE-WRITING MACHINE.

' SPECIFICATION forming part of Letters Patent No. 619,290, datedFebruary 14, 1899.

Application filed May 5 18.98. Serial No. 679,753. (No model.)

To a/ZZ whom it may concern.-

Beit known that I, JACOB FELBEL, a citizen of the United States, and aresident of the borough of Manhattan, city, county, and State of NewYork, have invented certain new and useful Improvements in Type-WritingMachines, of which the following is a specification.

The main object of my invention is to provide means whereby acard-holder may be readily attached to and detached from the platen of atype-writing machine and also to provide such a construction as that theplaten may be used for ordinary Work upon paper when the card-holder isremoved, thus obviating the necessity of the employment of two dierentplatens for the two kinds of work, which has been general heretofore.

To this end my invention consists, first, in combining with a perforatedplaten a cardholder having pins or legs adapted to the perforations inthe platen, and, secondly, in combining with a perforated platen andcardholder having pins or legs means for holding or catching thecard-holder device to provide more eectually against accidentaldetachment thereof; and my invention consists in certain other featuresof construction and combinations of devices, all of which will behereinafter more fully described,and particularly pointed out in theappended claims.

In the accompanying drawings, Figure 1 is a longitudinal verticalsection of a portion of a type-writing machine embodying myimprovements. Fig. 2 is a cross-section thereof. Fig. 3 is a perspectiveview of the cardholder detached. Fig. 4 is a detail view of theleft-hand platen-head, a portion of the platen axle or shaft, thepressure-spring, and one of the pins of the card-holder in engagementwl'th the shaft or axle, the pin being shown in section; and Fig. 5 is adetail View, partly in section, of the pin and the springpressed shaft,the hole or opening in the shaft being dierent in form from that shownin the other views and the pin being provided with a notch or groove.

In the several views the same part will be found designated by the samenumeral of reference.

1 designates the carriage or platen frame of a type-writing machine, 2the platen, and 3 the platen shaft or axle, which, as usual, issupported at its ends in side bars 4 of the frame or carriage and at itsextremities is provided with hand wheels or knobs 5 for rotation of theshaft and of the platen connected thereto. The platen consists of ahollow core 6, having a rubber or other suitable covering or sheath 7,and heads 8 and 9, secured to the ends of the core by screws 10.

The right-hand platen-head 8 is preferably provided with ratchet-teeth11 to coperate with the usual line-spacing mechanism, (not shown in itsentiretyg) but the usual holdfast spring-pressed roller or detentemployed is indicated at 12.

The left-hand 'platen-head 9 is formed or provided with a sleeve or hub13, which surrounds the shaft 3 and'which is slotted longitudinally, asat 14. The shaft 3 is provided with a pin 15, whose ends engage thelongitudinal slots 14 on diametrically opposite sides of the shaft andcause the platen-head and platen to turn when the shaft itself isturned, while at the same time the shaft is enabled to movelongitudinally a limited distance independently of the sleeve or hub 13.Surrounding the shaft is a coiled spring 16, one end of which isattached to the shaft and the opposite end bears at the bottom of a holeor housing 17, formed in the hub or sleeve 13. Thetendencyof saidspringis to movetheshaft toward the right. That portion of the shaftwithin the platen is formed with two transverse holes or perforations1S, one near each platen-head, to receive the inner free ends of pins,legs, or projections 19, extending rigidly from the under side of thecard-holder 20. The said pins or the like 19 pass through radialperforations 2l, formed at the ends of the platen and which are locateda distance apart about equal to the distance apart of the pins 19 andthe distance apart of the perforations 18 in the shaft, the severalperforations being slightly larger in diameter than the diameter of thepins, which latter are made preferably of small cross-section, so as torequire as small-sized holes in the platen as possible, and thus toreduce the defacement of the surface of the platen to the minimum. Theworking field or surface of the platen be- IDO or rod 3.

tween the perforations 21 is left uniform or unmutilated, so that whenthe card-holder is detached theplaten is adapted for work upon ordinarypaper.

The card-holder is applied to the platen by passing the pins 19 throughthe holes 21 in the platen and into the holes 18 in the shaft The holesin the shaft normally do not accurately register with the holes in theplaten, and hence for the purpose of enabling the pins to pass into theholes in the shaft the shaft is first pushed slightly toward the leftagainst the tension of its spring 16, so as to bring the holes 18 inalinement with the holes 21, and when this has been done and the pinshave engaged the holes 18 the pressure upon the shaft is removed,whereupon the spring 16 causes the shaft to move slightly toward theright and the left hand sides or walls ofi the holes therein are causedto press against the sides of the pins. The friction produced by thepressure of the spring 16 between the shaft and pins, together with thefriction of the pins within the holes .21, is sufficient to lock or holdthe card-holder upon the surface of theplaten against casual detachment.Of course when it may be desired to remove the card-holder it is simplynecessary to move the shaft endwise again toward the left to remove thepressure of the spring, whereupon the card-holder may be instantlydetached by lifting the pins out of the holes, the card-holder beingprovided, preferably,with'a finger-piece 22 to facilitate its removal.The .endwise movements of the shaft may be limited or regulated by thedistances of the hubs 28 of the 'hand-wheels 5 from the outer sides ofthe end bars 4. Of course', instead of the large round holes 18 in theshaft, square holes or slots may be formed therein, and, as shown atFig. 5, the holes 18 in the shaft may be formed by milling the shaftfrom opposite sides, as indicated by the dotted circles 24, so as toprovide a beveled or sharp edge 25 to engage a groove or notch 26 in thepin 19, and thus more firmly and positively hold the cardholder.

While I prefer to move the shaft endwise by hand, as above explained, tobring the holes or openings in the shaft in register with the'descending pins, it will be understood, of course, that the holes maybe so situated relatively to the beveled or tapering points of the pinsas that the pins will strike within the holes eccentrically thereof andthen wedge or force the shaft longitudinally as the beveled ends of thepins are farther inserted, thus compressing the spring, and when it maybe desired to remove the card-holder it may be pulled off directlyagainst the pressure of the spring without specially manipulating theshaft.

The card-holder preferably consists of a bar extending for the fulllength of the platen and provided at one edge with an undercut, so as toform an overhanging ledge 27 for the introduction of the card 28 in amanner common heretofore.

Although I prefer to make the holes for the I pins slightly larger thanthe cross-section of the pins and to use some means for holding thecard-holder against accidental detachment, it will be understood,however, that the holes in the platen may be made smaller, so as toafford the pins a close fit and produce enough friction to hold thecard-holder in place without even engaging the pins with the shaft; butthis specific construction forms the subject-matter of anotherapplication filed by me December 14, 1898, Serial No. 699,261.

Whatl I claim as new, and desire to secure by Letters Patent, is-

l. In a type-writing machine, the combination with a cylindrical platenhaving a uniform or unmutilated surface throughout its working field(whereby the platen may be used for ordinary Work upon paper) and havingperforations at its ends, of a card-holder for temporary use only andadapted to bear upon the plain, unmutilated surface of the platen andhaving pins or legs that extend directly from the under side of saidcardholder and are adapted to the perforations in the platen; wherebythe said card-holder is adapted for quick attachment to the platen whenit is desired to print upon cards and for quick detachment therefromwhen it is desired to use the platen for printing upon ordinary paper. Y

2. Ina type-writing machine, the combination with a perforated platen,of a detachable card-holder having fixed pins or legs and supplementalmeans for holding the card-holder adapted automatically to engage saidpins or legs when the latter are inserted and to release the same whenthe card-holder is simply lifted from the surface of the platen. A

3. In a type-writing machine, the combination with a perforated platen,of a detachable card-holder having fixed pins or legs and means on saidplaten for engaging or catching said pins or legs interiorly of theplaten.

4:. In a type-writing machine, the combination with a perforated platen,of a detachable card-holder having fixed pins or legs, and a perforatedspring-pressed endwise-movable platen shaft or axle.

5. In a type-writing machine, the combina-v tion of a platen having aperforation at or near each end, a detachable card-holder having a xedpin or leg at or near each end, a platen shaft or axle havingperforations Within the platen to receive said pins or legs, and aspring for causing said shaft or axle to press against said pins orlegs.

6. In a type-writing machine, the combination of a platen having a headprovided with a slotted sleeve or hub, a platen shaft or axle adapted tomove endwise and provided with a pin to` engage said slotted sleeve orhub and also provided with a spring to move said shaft in one direction,perforations in the platen IOO IIO

to lie upon the surface of a cylindrical platen I 5 and having at itsforward edge an undercut and a projecting ledge, and also provided at ornear its ends with fixed pins or legs which project from the under sideof said bar and are adapted to pass into holes formed in the zo saidplaten.

Signed at the borough of Manhattan, in the city, county, and State ofNew York, this 4th day of May, A. l). 1898.

JACOB FELBEL.

Witnesses:

K. V. DONOVAN, ETHEL WELLS.

